hey thanks Alex, I'm not a developer but just tried the html
Can i replace this

 <title>
    {%- unless page.layout == 'home' -%}
      {{ page.title | append: ' | ' }}
    {%- endunless -%}
    {{ site.title }}
  </title>

with this

<title>
  {%- unless page.layout == 'home' -%}
    {{ page.title }}
  {%- endunless -%}
</title>

yes. I have done little customization here and there. and I'm planning to document this.

thanks for all the help Alex

Hi Alex, for some reason i don't find this file in the chirpy starter pack.
_includes/head.html

Also if I goto _Site/post/actualpost/index.html
and remove "| Azure Doctor" from each post, when i build exec it and see, it gets added automatically it seems.

Hi Alex, for some reason i don't find this file in the chirpy starter pack.
_includes/head.html

That's expected. This file can be found in this repository only. Just follow the link I've shared previously.

Also if I goto _Site/post/actualpost/index.html
and remove "| Azure Doctor" from each post, when i build exec it and see, it gets added automatically it seems.

That's expected. You build the site from markdown files into HTML as output to _site directory, so every time you build a site, the content of that folder will overwrite.